Home / 87,005.76-120,066.60-48,765.24

Finding the Fourth Proportional to 87,005.76, 120,066.60 and 48,765.24

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Solution

The fourth proportional to 87,005.76, 120,066.60 and 48,765.24 is: 67,295.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,005.76 : 120,066.60 = 48,765.24 : x
  2. Step 2: Convert to fraction form
    87,005.76/120,066.60 = 48,765.24/x
  3. Step 3: Cross multiply
    87,005.76x = 120,066.60 × 48,765.24
  4. Step 4: Simplify right side
    87,005.76x = 5,855,076,564.98
  5. Step 5: Solve for x
    x = 5,855,076,564.98/87,005.76
  6. Step 6: Final answer
    x = 67,295.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.